US7369678B2 - Digital watermark and steganographic decoding - Google Patents
Digital watermark and steganographic decoding Download PDFInfo
- Publication number
- US7369678B2 US7369678B2 US11/452,662 US45266206A US7369678B2 US 7369678 B2 US7369678 B2 US 7369678B2 US 45266206 A US45266206 A US 45266206A US 7369678 B2 US7369678 B2 US 7369678B2
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- United States
- Prior art keywords
- signal
- watermark
- blocks
- message
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- Prior art date
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Abstract
Description
-
- fix the orientation signal impulse functions (“points”) within a valid boundary (1022);
- pre-refine the rotation-scale vector (1024);
- find the major axis and re-fix the orientation points (1026); and
- refine each vector with the addition of a differential scale component (1028).
Claims (24)
Priority Applications (3)
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US11/452,662 US7369678B2 (en) | 1995-05-08 | 2006-06-13 | Digital watermark and steganographic decoding |
US12/116,117 US7756290B2 (en) | 2000-01-13 | 2008-05-06 | Detecting embedded signals in media content using coincidence metrics |
US12/835,542 US8027510B2 (en) | 2000-01-13 | 2010-07-13 | Encoding and decoding media signals |
Applications Claiming Priority (11)
Application Number | Priority Date | Filing Date | Title |
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US08/436,102 US5748783A (en) | 1995-05-08 | 1995-05-08 | Method and apparatus for robust information coding |
US08534005 US5832119C1 (en) | 1993-11-18 | 1995-09-25 | Methods for controlling systems using control signals embedded in empirical data |
US08/637,531 US5822436A (en) | 1996-04-25 | 1996-04-25 | Photographic products and methods employing embedded information |
PCT/US1996/006618 WO1996036163A2 (en) | 1995-05-08 | 1996-05-07 | Steganography systems |
US08/649,419 US5862260A (en) | 1993-11-18 | 1996-05-16 | Methods for surveying dissemination of proprietary empirical data |
US09/186,962 US7171016B1 (en) | 1993-11-18 | 1998-11-05 | Method for monitoring internet dissemination of image, video and/or audio files |
US48274900A | 2000-01-13 | 2000-01-13 | |
US09/503,881 US6614914B1 (en) | 1995-05-08 | 2000-02-14 | Watermark embedder and reader |
US10/215,389 US6718047B2 (en) | 1995-05-08 | 2002-08-07 | Watermark embedder and reader |
US10/819,716 US7062069B2 (en) | 1995-05-08 | 2004-04-06 | Digital watermark embedding and decoding using encryption keys |
US11/452,662 US7369678B2 (en) | 1995-05-08 | 2006-06-13 | Digital watermark and steganographic decoding |
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US10/819,716 Continuation US7062069B2 (en) | 1995-05-08 | 2004-04-06 | Digital watermark embedding and decoding using encryption keys |
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US10/215,389 Expired - Fee Related US6718047B2 (en) | 1995-05-08 | 2002-08-07 | Watermark embedder and reader |
US10/819,716 Expired - Fee Related US7062069B2 (en) | 1995-05-08 | 2004-04-06 | Digital watermark embedding and decoding using encryption keys |
US11/452,662 Expired - Fee Related US7369678B2 (en) | 1995-05-08 | 2006-06-13 | Digital watermark and steganographic decoding |
US12/116,117 Expired - Fee Related US7756290B2 (en) | 2000-01-13 | 2008-05-06 | Detecting embedded signals in media content using coincidence metrics |
US12/835,542 Expired - Fee Related US8027510B2 (en) | 2000-01-13 | 2010-07-13 | Encoding and decoding media signals |
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US10/215,389 Expired - Fee Related US6718047B2 (en) | 1995-05-08 | 2002-08-07 | Watermark embedder and reader |
US10/819,716 Expired - Fee Related US7062069B2 (en) | 1995-05-08 | 2004-04-06 | Digital watermark embedding and decoding using encryption keys |
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US12/835,542 Expired - Fee Related US8027510B2 (en) | 2000-01-13 | 2010-07-13 | Encoding and decoding media signals |
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US7756290B2 (en) | 2010-07-13 |
US20040264735A1 (en) | 2004-12-30 |
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AU2001229362A1 (en) | 2001-07-24 |
US20060233420A1 (en) | 2006-10-19 |
US20090136085A1 (en) | 2009-05-28 |
US20110007936A1 (en) | 2011-01-13 |
US7062069B2 (en) | 2006-06-13 |
US20030053653A1 (en) | 2003-03-20 |
US6614914B1 (en) | 2003-09-02 |
WO2001052181A1 (en) | 2001-07-19 |
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